XML 51 R3.htm IDEA: XBRL DOCUMENT v3.3.0.814
Statement of Consolidated Comprehensive Loss (Unaudited) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Net income (loss) $ 106 $ 131 $ 568 $ 63
Other comprehensive loss, net of tax (C):        
Change in unrecognized net actuarial loss and prior service cost/benefit related to pension and other postretirement benefits 120 122 226 214
Foreign currency translation adjustments (1,188) (1,000) (2,166) (464)
Net change in unrealized gains on available-for-sale securities (2) (1) (2)  
Net change in unrecognized gains (losses) on cash flow hedges 215 (14) 581 (11)
Total Other comprehensive loss, net of tax (855) (893) (1,361) (261)
Comprehensive loss (749) (762) (793) (198)
Alcoa [Member]        
Net income (loss) 44 149 379 109
Other comprehensive loss, net of tax (C):        
Change in unrecognized net actuarial loss and prior service cost/benefit related to pension and other postretirement benefits 111 126 212 217
Foreign currency translation adjustments (889) (774) (1,649) (384)
Net change in unrealized gains on available-for-sale securities (2) (1) (2)  
Net change in unrecognized gains (losses) on cash flow hedges 214 (19) 584 (10)
Total Other comprehensive loss, net of tax (566) (668) (855) (177)
Comprehensive loss (522) (519) (476) (68)
Noncontrolling Interests [Member]        
Net income (loss) 62 (18) 189 (46)
Other comprehensive loss, net of tax (C):        
Change in unrecognized net actuarial loss and prior service cost/benefit related to pension and other postretirement benefits 9 (4) 14 (3)
Foreign currency translation adjustments (299) (226) (517) (80)
Net change in unrecognized gains (losses) on cash flow hedges 1 5 (3) (1)
Total Other comprehensive loss, net of tax (289) (225) (506) (84)
Comprehensive loss $ (227) $ (243) $ (317) $ (130)